On Wed, Mar 31, 2010 at 01:47:23PM -0700, Yinghai Lu wrote: > >> > This appears to be caused by: > >> > > >> > start_kernel -> radix_tree_init -> kmem_cache_create (slub) -> > >> > down_write -> __down_write (lib/rwsem-spinlock.c) -> spin_unlock_irq > >> > > > That's going to be hard to fix. > > > spin_unlock_irq from arm is different from other archs? Not all arches use lib/rwsem-spinlock.c. In particular, x86 doesn't when X86_XADD is set. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html